Which investigation shows the transfer of heat energy in the absence of matter?

Answers:
A) Using electromagnetic waves to investigate radiation
B) Using Particle movement through a solid to investigate conduction.
C) Using particles and space colliding to investigate conduction.
D) Using a current through fluid to investigate radiation.

PLS HELP..

The correct answer is A) Using electromagnetic waves to investigate radiation. This is because electromagnetic waves can transfer heat energy through empty space, without the need for matter. This process is known as radiation.

The investigation that shows the transfer of heat energy in the absence of matter is option A) Using electromagnetic waves to investigate radiation.